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stromjs

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Dependency-free streams utils for Node.js

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/// <reference types="node" /> import { Transform, TransformOptions } from "stream"; export declare function reduce<T, R>(iteratee: ((previousValue: R, chunk: T, encoding: string) => R) | ((previousValue: R, chunk: T, encoding: string) => Promise<R>), initialValue: R, options?: TransformOptions): Transform;